Airbus Fleet Readiness for SBAS
EGNOS Annual Workshop
Italian Space Agency, Roma, 24-25 Sept 2019
Mathieu HIALE-GUILHAMOU – Navigation Systems
24th Sept 2019
SLS function for SBAS Landing System
• Technology based on differential GPS to fly RNAV
(GNSS) approaches:
in an ILS look-alike way
With geometric vertical guidance
(no baro VNAV issue with cold temperature)
With LPV minima
(performance equivalent CAT I ILS: down to 200 ft)
• No local ground infrastructure:
GPS augmentation based on geostationary SBAS
satellites (e.g. EGNOS or WAAS)
Secured Final Approach Segment extracted from
Navigation database
LPV minima can only be operated
when relying on SBAS technology
“SBAS = Cat 1 Precision Approach
Service”
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 2
Operations Minima / RVR*
Cat 3B < 50 ft or No DH / 75 m
Cat 3A 50 ft / 200 m
Cat 2 100 ft / 300 m
Cat1 200 ft / 550 m
* RVR Values may vary depending on local authorities
Vertical
Lateral PA
LPV
SLS function for SBAS Landing System
• LPV minima: on RNAV (GNSS) approaches charts
• EGNOS is the European enabler
PERFORMANCE EQUIVALENT CAT I ILS DOWN TO 200 FT
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 3
200-300 ft DA
“LPV” minima
Airbus Strategy for Straight-In approaches
SLS is part of xLS concept and is now in service on A350
• Benefits
• No specific training as it relies on xLS concept
• Operational flexibility: the aircraft automatically selects
the correct landing function, as soon as the pilot
selects any approach
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 4
ILS
SLS
FLS
• Same ILS-lookalike HMI for all kinds of approach types
Flying the deviations (diamonds)
Airbus xLS Concept
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 5
ILS look-alike HMI
- Similar displays whatever
the modes
A350 Format Display – overview before video
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 6
NAVIGATION DISPLAY
• medium-long term data
• Flight plan information
• Approach name at the top
• Weather/Terrain information
PRIMARY FLIGHT DISPLAY
• Short term data
• Attitude information (artificial
horizon)
• Altitude, speed, Vertical
Speed, Heading
• Guidance modes at the top
(vertical, Lateral, Thrust)
• Weather/Terrain information
SLS Video
Sept 2019 Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma 7
Sept 2019 Page 8
2021: SLS Cat I
2020: SLS Cat I
Since 2014: SLS Cat I
2021: SLS Cat I
Airbus Fleet Readiness review for A320/A330/A350/A380 SLS function
Airbus Fleet Readiness for SBAS - EGNOS Annual Workshop - September 2019 - Roma
Beluga-XL: 2020: SLS Cat I
A220 LPV capability
Since 2016: Basic on all aircraft
CONCLUSION
9
01 PRECISION
APPROACH
SERVICE
Currently down
to CAT I minima
02 ILS LOOK-ALIKE
CONCEPT
No specific
training
Same SOP
03 DEVELOPING
WORLDWIDE
Wide area coverage
No need for local
infrastructure
Perfect Backup or
complement to ILS
04 GROWTH
POTENTIAL
Extension possible to
Autoland,
SA Cat1,
Cat2